The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 6C. —82-year-old woman with sudden onset of hypertension refractory to medication. After MR angiography, second phase-contrast measurement was performed distal to right renal artery stenosis using similar parameters with encoding velocity of 150 cm/sec. Elevated systolic velocity of 257 cm/sec (with phase unwrapping to correct for velocity aliasing) suggests significant proximal stenosis.